To help you succeed in the application process, we offer seminars and workshops. These events are voluntary and open to anyone. We strongly encourage those who are interested in or curious about a career in law enforcement to take advantage of these workshops. Applicants are particularly encouraged to attend. OPD offers the following sessions: National Testing Network (NTN) Exam Workshop - prepare for the written exam Oral Boards Exam Workshop - prepare for the oral board interview Women in Law Enforcement Workshop Practice Physical Ability Test Workshop (First Saturday of each month) - practice for the physical exam